Navigation method and a navigation system for determining a route for a means of transport moving from starting point to a destination
AssigneeRobert Bosch GmbH
InventorsStefan Lau, Heinrich Schmidt, Ralf Hoffmann
Life of this patent
Estimating the term…
Abstract
A navigational method and a navigational system for determining a route from a starting location to a destination location for a means of locomotion, especially for a motor vehicle, an airplane, or a ship, the route being calculated on the basis of a digital database, which contains predetermined path segments Wi having correspondingly assigned nodal points Ni, which connect the specific path segments Wi to each other, the specific weightings Gi being assigned to the path segments Wi and/or to the nodal points Ni. In this context, the weightings Gi that are used for the route calculation are varied as a function of the time of day.
Claims7
A navigational system for determining a route from a starting location to a destination location for a locomotion device, comprising:
- an arrangement for providing a digital map base for calculating the route, the digital map base including predetermined path segments Wi having correspondingly assigned nodal points Ni that connect the predetermined path segments Wi to each other;
- and
- an arrangement for assigning specific weightings Gi to at least one of the predetermined path segments Wi and the nodal points Ni, wherein:
- the specific weightings Gi vary as a function of a time of day, and
- the specific weightings Gi correspond to a product of Gi=Li*Ki, Li being a path segment length, and Ki being a path segment class Ki that is inversely proportional to an average speed that is possible on one of the predetermined path segments Wi.
Dependencies are inferred from the claim text.